<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>登录成功</title>
    <style>
        body {
            font-family: 'Arial', sans-serif;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
            background-color: #f5f5f5;
        }
        .success-container {
            text-align: center;
            padding: 30px;
            background: white;
            border-radius: 10px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
            max-width: 400px;
            width: 100%;
        }
        .success-icon {
            color: #4CAF50;
            font-size: 60px;
            margin-bottom: 20px;
        }
        .success-message {
            font-size: 24px;
            font-weight: bold;
            margin-bottom: 30px;
            color: #333;
        }
        .confirm-button {
            background-color: #4CAF50;
            color: white;
            border: none;
            padding: 12px 24px;
            font-size: 16px;
            border-radius: 5px;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        .confirm-button:hover {
            background-color: #45a049;
        }
    </style>
</head>
<body>
<div class="success-container">
    <!-- 绿色勾号（使用HTML实体 ✓） -->
    <div class="success-icon">✓</div>

    <!-- 登录成功文字 -->
    <div class="success-message">登录成功</div>

    <!-- 我知道了按钮 -->
    <button class="confirm-button" onclick="window.close()">我知道了</button>
</div>
</body>
</html>